81 lines
2.9 KiB
Objective-C
81 lines
2.9 KiB
Objective-C
//
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// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
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//
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#import "OWSSyncGroupsMessage.h"
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#import "NSDate+OWS.h"
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#import "OWSGroupsOutputStream.h"
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#import "OWSSignalServiceProtos.pb.h"
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#import "TSAttachment.h"
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#import "TSAttachmentStream.h"
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#import "TSContactThread.h"
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#import "TSGroupModel.h"
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#import "TSGroupThread.h"
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NS_ASSUME_NONNULL_BEGIN
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@implementation OWSSyncGroupsMessage
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- (instancetype)init
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{
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return [super init];
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}
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- (nullable instancetype)initWithCoder:(NSCoder *)coder
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{
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return [super initWithCoder:coder];
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}
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- (OWSSignalServiceProtosSyncMessageBuilder *)syncMessageBuilder
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{
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if (self.attachmentIds.count != 1) {
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DDLogError(@"expected sync groups message to have exactly one attachment, but found %lu",
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(unsigned long)self.attachmentIds.count);
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}
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OWSSignalServiceProtosAttachmentPointer *attachmentProto = [TSAttachmentStream buildProtoForAttachmentId:self.attachmentIds.firstObject];
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OWSSignalServiceProtosSyncMessageGroupsBuilder *groupsBuilder =
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[OWSSignalServiceProtosSyncMessageGroupsBuilder new];
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[groupsBuilder setBlob:attachmentProto];
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OWSSignalServiceProtosSyncMessageBuilder *syncMessageBuilder = [OWSSignalServiceProtosSyncMessageBuilder new];
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[syncMessageBuilder setGroupsBuilder:groupsBuilder];
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return syncMessageBuilder;
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}
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- (NSData *)buildPlainTextAttachmentDataWithTransaction:(YapDatabaseReadTransaction *)transaction
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{
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// TODO use temp file stream to avoid loading everything into memory at once
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// First though, we need to re-engineer our attachment process to accept streams (encrypting with stream,
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// and uploading with streams).
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NSOutputStream *dataOutputStream = [NSOutputStream outputStreamToMemory];
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[dataOutputStream open];
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OWSGroupsOutputStream *groupsOutputStream = [OWSGroupsOutputStream streamWithOutputStream:dataOutputStream];
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[TSGroupThread
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enumerateCollectionObjectsWithTransaction:transaction
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usingBlock:^(id obj, BOOL *stop) {
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if (![obj isKindOfClass:[TSGroupThread class]]) {
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if (![obj isKindOfClass:[TSContactThread class]]) {
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DDLogWarn(
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@"Ignoring non group thread in thread collection: %@", obj);
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}
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return;
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}
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TSGroupThread *groupThread = (TSGroupThread *)obj;
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[groupsOutputStream writeGroup:groupThread transaction:transaction];
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}];
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[groupsOutputStream flush];
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[dataOutputStream close];
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return [dataOutputStream propertyForKey:NSStreamDataWrittenToMemoryStreamKey];
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}
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@end
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NS_ASSUME_NONNULL_END
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